草鱼垂体STH细胞组织化学和超微结构研究

本文分别对草鱼性成熟前、后垂体ＳＴＨ细胞进行了组织化学和超微结构研究。垂体ＳＴＨ细胞多位于中腺垂体中部和背部，为嗜酸性细胞，用ＰＭＢ（ＰＡＳ－ＭＢ）和ＡＰＧ（ＡＢ－ＰＡＳ－ＯＧ）两种组织化学方法染色，对橙黄Ｇ阳性，对ＰＡＳ、ＡＢ阴性；电镜下电子密度较高，内质网绕核呈环形，分泌颗粒多而小。

STUDIES ON THE HISTOCHEMISTRY AND THE ULTRASTRUCTURE OF STH CELLS OF ADENOHYPOPHYSIS IN Ctenopharyngodon idellus

The histochemistry and the ultrastructure of STH cells (somatotropin cells) of the adenohypophysis in Ctenopharyngodon idellus have been studied. STH cells lie in the central region and the back region of the meso-adenohypophysis. The results showed that STH cells are acidophilic cells, orange G positive and PAS-AB negative during both PMB (PAS--MB)dyeing and APe (AB-PAS-OG) dyeing, STH cells show high electron density, theirrough-surfaced endoplasmic reticulum in general appears as well-developed parallel lamellae around the nucleus, STH cells have many granules in small size under the electron microscope.